PI DataLink

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  1. Setting to allow the omission of error strings in Calculated or Filtered Results

    Give the customers either an option or an application setting that allow them to omit error strings from function output. This would allow them to more easily chart results. Some examples of current strings that cause charting problems include, the "[-11101] All data events are filtered in summary calculation" message in PIAdvCalcFilDat/PIAdvCalcExpFilDat and the "Calc Failed" message from PIExpDat.

    Note: This was previously Enhancement 26880OSI8.

    44 votes

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  2. Support for UOM conversions

    Being able to specify a UOM that is not the default UOM and having the value returned converted in all functions

    Note: This was previously Enhancement 25182OSI8

    37 votes

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  3. Compressed Data and Tables

    Compressed Data should be able to (or have the option to) query multiple tags and return the results as a single table/array of information, instead of independent columns of data. Returning independent columns of data results in rows being mismatched across multiple columns because of missing events. A table should be able to be easily created that keeps the data from multiple tags contextualized with each other based on the time stamps.

    18 votes

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  4. Support named ranges to avoid issue KB01369

    Excel places named ranges in formulas when a cell has a named range (instead of cell references). Excel formulas become more readable this way.
    Datalink should support defined named ranges too.
    Editing a Datalink array formula directly in Excel and replacing cell references with named ranges in works already.
    But Datalink pop-up dialogs can only use cell references.
    With named range support for parameters of Datalink formulas no workbook and worksheet named are added to the formula anymore avoiding the issue of KB01369.

    9 votes

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    EVALUATING  ·  4 comments  ·  Functions  ·  Flag idea as inappropriate…  ·  Admin →

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  5. Recalculate without resize in the right click menu

    Recalculate without resize in the right click menu

    Note: This was previously Enhancement 19185OSI8

    5 votes

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  6. Interpolate Step=On Tags

    There are tags that should be kept as Step=On but there is certain cases in which someone should be able to easily bypass the typical interpolating rules (interpolation that follows the step parameter) and allow for a true interpolation between values

    The cumbersome workaround is to utilize performance equation functions within the expression field . . . but that's pretty advanced usage

    3 votes

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  7. Integrate with Excel Undo feature

    If you make a mistake or overwrite information while working with PI Datalink information there is no way to undo it without deleting or recalculating the information completely.

    3 votes

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  8. For compressed data, have the option to return the tagname (for example, similar to how the count is returned at the top).

    If multiple tags are selected for 1 compressed data function, it is difficult to determine which data is associated with the tags.

    On behalf of Elizabeth Metzler
    elizabeth.metzler@enbridge.com

    3 votes

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  9. Add new query that limits data pulled to that which is sufficient to properly chart while maintaining the visual integrity of the data

    One of the quickest ways to identify exceptions is to visualize it through plots. Exceptions are often minima's or maxima's. Sampled data queries often miss the exceptions. Compressed data queries are frequently so voluminous that it is not possible to pull all the data you desire. Ideally, there would be a Pi DataLink query available where you could identify the time range you wish to retrieve, and only the data necessary to accurately plot that tag would be returned. This would minimize the data retrieved, speeding up queries and data transfers, while not overloading Excel with a bunch of data…

    1 vote

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  10. Calculated data for multiple points

    In our business, people frequently use the "Calculated Data" function to retrieve (for example) daily averages for multiple tags. When they want to do this for multiple days, a new function is required for each day (presumably requiring additional calls to the PI Server to evaluate the data).

    The calculated data function allows multiple data items, but only a single start time and end time. Extending the function to allow a range of start times and end times to be passed could greatly improve usability and efficiency.

    The AFSDK appears to have functions that can be used to calculate this.…

    1 vote

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  11. Datalink-query compressed data according numbers or interval

    now users can query compressed data according the interval. how about to query according the numbers, which users can set

    1 vote

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    Believing the original question has been answered, I’m closing the feedback item. Please don’t hesitate to reach out if you have any other questions or suggestions.

    Thank you for your support.

    Victor Zhang
    Product Manager

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